A fist streaks toward a creature within range. Make a ranged spell attack against the target. On a hit, the target takes 1d10 force damage and makes a DC 18 constitution check. on a failure they are stunned for one round.

The spell creates more than one fist when you reach higher levels: two fists at 5th level, three fists at 11th level, and four fists at 17th level. You can direct the beams at the same target or at different ones. Make a separate attack roll for each fist.